/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

export const cacheWrapper = <T extends Array<any>, U>(
  fn: (...args: T) => U,
  cache: Map<string, any>,
  keyFn: (...args: T) => string = (...args: T) => JSON.stringify([...args]),
) => (...args: T): U => {
  const key = keyFn(...args);
  if (cache.has(key)) {
    return cache.get(key);
  }
  const result = fn(...args);
  cache.set(key, result);
  return result;
};
